我们看到各种物体都具有不同的色彩，这是由于各种物体具有（）色光的特性。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

由国立山西大学1943年度新生入学试题清册中看到，考试内容包括：数学、史地、生物、公民和（）等科。

俗话说“龙生龙，凤生凤，老鼠的儿子会挖洞”是指生物体都具有（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。